Errors encountered while processing 03-unnumbered.yml
IncorrectValue in interfaces: Invalid unnumbered IPv4 interface 1 (r -> stub) on node r 
... Device exos (node r) does not support unnumbered IPv4 interfaces
IncorrectValue in interfaces: Device exos (node r) does not support LLA-only IPv6 interfaces
... Interface 1 (link r -> stub)
IncorrectValue in interfaces: Invalid unnumbered IPv4 interface 2 (r -> stub) on node r 
IncorrectValue in interfaces: Device exos (node r) does not support LLA-only IPv6 interfaces
... Interface 3 (link r -> stub)
IncorrectValue in interfaces: Invalid unnumbered IPv4 interface 4 (r -> stub) on node r 
IncorrectValue in interfaces: Device exos (node r) does not support LLA-only IPv6 interfaces
... Interface 5 (link r -> stub)
Fatal error in netlab: Cannot proceed beyond this point due to errors, exiting